MM1291AF Datasheet - MITSUMI

MM1291AF Protection of Lithium Ion Batteries (one cell)

Pin NO. NAME GND I/O Input connected between VIN-GND. Nch-FET gate connection pin for discharge control. Switches gate OFF when 2 GD Output excess discharge is detected, and for current protection. Switches gate ON when excess discharge is detected in normal state. Detection pin for voltage between .

MITSUMI Protection of Lithium Ion Batteries (one cell) MM1291 Protection of Lithium Ion Batteries (one cell) Monolithic IC MM1291 Outline This is a protection IC for one-cell series that protects lithium ion batteries during excess charging, discharging, or overcurrent. If abnormalities occur during charging and excess voltage is applied, it has a function that turns off the external FET switch when voltage is applied to each battery beyond a specified time (overcharging detection). It also h.

MM1291AF Features

* 1. 2. 3. 4. 5. Current consumption (during overcharging) Current consumption (normal) Current consumption (during excess discharge) Consumption current (during excess discharge) Overcharge detection voltage (Ta=-20°C~+70°C) VCC=4.5V VCC=3.5V VCC=1.9V VCC=1.0V VCC pin 40µA typ. VCC pin 7µA typ. 0.7µA

MM1291AF_MITSUMIELECTRIC.pdf